Centrifuge mainly for purifying or separating liquids from impurities contained



Iom. 19 1926.

T. C. THOMSEN CEINTRIFUGE MAINLY FOR PURIFYING OR SEPAHATINGVl LIQUIDS FROM IMPURITIES CONTAINED Filed April 9,

m fw Thomas C' r'i MT/10mg. A10,

Patented Oct. 19, 1928.

UNITED STATES 'PATENT OFFICE.

KOFOLD, HAUBERGQMRSTRAND & HELWEG,

HAGEN, DENMARK.

AKTIESELSKABET TITAN, OF COPEN- CENTRIFUGE MAENLY FOR PURIFYING 0R SEPARATING LIQUIDE FROM IMPURI'IIES CONTAINED.

Application filed April 9, 1925, Serial No. 21,853, and in Denmark April 10, 19,24.

For se stating liquids, for example lubrieating oils from water and solid impurities centrifugal separators are generally ernployed which are mostly arranged similar to the known. milk separators, that is with a drum in which the centrifugal se )eration is performed, while there are recharge pipes for' the oil Iand for the Water separated; sometimes also an overflow pipe is provided. i

The solid impurities are deposited along the inner side of the drum, Wherefore the latter has, from time to time, to be cleaned of tbe scale forming thereon. The resent invention relates to an arrangement or performing such cleaning of the centrifuge drum in an. easy and convenient manner.A

In the accompanying drawing the invention has been exemplified in a constructional form; Fig. l is a vcrticaLy longitudinal section.

Fig. 2 is a similar view of the lower part of the apparatus with the cleaning means partly raised. i

In the drawing all parts which are not absolutely necessary for the explanation of the invention have been omitted.` Thus, for

example, the gear for driving the drum has not been shown, nor the stationary casing and the various discharge nozzles.

In the drawing 1 is the c 'lindrical Wall ofA thedrurn 2 is its bottom aving the sha e of an inverted funnel, and 3 is its detac able top.

Into the drum is fitted an inset, the cen tral tube 4 of which is mounted with its lower part 5 above the bottom 2 of the drum, both the tube 4 and the lower part 5 being provided in the known manner with ribs 6.

The essential feature of the present invention consists in this that the lower part 5 of the inset terminates .in an annular scraper edge 7 which lies close against the internal cylindrical part of the drum.

The solid particles will be deposited along the xvall of the drum and may be readily removed by simply removing the top 3, and lifting the inset. The scraper edge will then scrape the scale of impurities oil the inside of the drum and thereby collect and remove all solid particles deposited.

Having now described my invention, what I claim. as new and deslre to secure by Letters Patent is:

1. A. centrifugal separator for purifying or separating liquids from impurities contained or separating mixtures of light and heavier liquids, comprising a drum, an inset in the drum, said insety being normally slightly raised above the bottom of said drum and ada ted to be lifted up therein and out there rom, a scraper edge formed on the lower part of said inset and reaching close up to the inside wall of said drum.

2. centrifugal separator comprising a cylindrical drum, a. closed bottom on the drum, reinovable internal member mounted in the drunprand an annular bottom part carried on the`said internal member and having a circular peripheral scraping edge for engaging the internal cylindrical wall of the drum and removing heavier impurities from said Wall as the said member is raised from the drum. In testimony whereof I ailix my si ature THOMAS CHRISTIAN THO VSEN Patented Oct. 19, 1926.

Bl'Sl' VILELE COPY PATENT OFFICE.

THOMAS CHRISTIAN THMSEN,

0F COPENHAGEN, DENMARK, ASSIGNOR T0 MSSRS.

KOFOLD, HAUBERGQMARSTBAN D & HELWEG, AKTIEEELSKABET TITAN, OF GOPEN- HAGEN, DENMARK.

CENTRIFUGE MAINLY FOR PURIFYING OR SEPARATING LIQUIDE FROM IMPURITIES CONTAINED.

Application tiled April 9, 1925, Serial No. 21,853, and in Denmark April 10, 19,24.

For se arating liquids, for example lubricating oi s from water and solid impurities centrifugal separators are generally ernployed which are mostly arranged similar to the known milk separators, that is with a drum in which the centrifugal se )eration is performed, while there are ischarge pipes for the oil and for the water separated; sometimes also an overflow pipe is provided. i

The solid impurities are deposited along the inner side of the drum, wherefore the latter has, from time to time, to be cleaned of the scale forming thereon. The resent invention relates to an arrangement or performing such cleaning of the centrifuge drum in an easy and convenient manner.

In the accompanying drawing the invention has been exemplified in a constructional form; Fig. l is a yertical, longitudinal section.

Fig. 2 is a similar view of the lower part of the apparatus with the cleaning means partly raised.

In the drawing all parts which are not absolutely necessary for the explanation of the invention have been omitted. Thus, for example, the gear for driving the drum has not been shown, nor the stationary casing and the various discharge nozzles.

In the drawing 1 is the c 'lindrical wall ofY thedrum` 2 is its bottom laying the sha e of an inverted funnel, and 3 is its detac able top.

Into the drum is ttcd an inset, the central tube 4 of which is mounted with its lower part 5 above the bottom 2 of the drum, both the tube 4 and the lower part 5 being provided in the known manner with ribs 6.

The essential feature of the present invention consists in this that the lower part 5 of the inset terminates in an annular scraper edge 7 which lies close against the internal cylindrical part of the drum.

The solid particles will be deposited along the wall of the drum and may be readily removed by simply removing the top 3, and lifting the inset. The scraper edge will then scrape the scale of impurities olf the inside of the drum and thereby collect and remove all solid particles deposited.

Having now described ni y invention, what I claim as new and desire to secure by Letters Patent is:

l. A centrifugal separator for purifying or separating liquids from impurities contained or separating mixtures of light and heavier liquids, comprising a drum, an inset in the drum, said inset being normally slightly raised. above the bottom of said drum and adafpted to be lifted up therein and out there rom, a scraper edge formed on the lower part of said inset and reaching close up to the inside wall of said drum.

2. A centrifugal separator comprising a cylindrical drum, a closed bottom on the drum, a removable internal member mounted in the druiigand an annular bottom part carried on the "saidginternal member and having a circular peripheral scraping edge for engaging the internal cylindrical wall of the drum and removing heavier impurities from said wall as the said member is raised from the drum. In testimony whereof I ailix my si ature THOMAS CHRISTIAN THOli` SEN.

Certificate of Correction.

,It is hereby certified that in lil'tters Patent Nrn 1,603,726; granted (lctober ll 1926, upon the appligatifm nl Thomas ('hrisl'iun Thomsen. of (,openhagcn, Donmar l i201 an improvement in (vnti'ifunc Mainly for Purifying or Separating Llqluds from Iinpnrlics ('nntaimil." :m cri-m' appears requiring mrrvctimi as follows: Il; the grant and in the howling to the primed specification. assipiiinerit` the parue ci the lirst-mentimwil :issiujiw should huw lawn xvi-Titan ami lil-Inhal :is [i1/torta instant o" linfohh :h` shown hy 'lim rmral'rls. ol' :i afgnmonts in the clin-e; and ihm .ha

said Letlcrs luont shiuhliho rcucl with IhnV :,.mfwtiun therein that thv sans uay conform in thrrcwoi'd et the ase in thc iaient (when Signed ani! scaled this Qlst day ol December' l). 192V.

[anni] M. J. MOORE. 

